who [ ]in the classroom yesterday?A .study B.studied C.is studying怎么选

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who [ ]in the classroom yesterday?A .study B.studied C.is studying怎么选

who [ ]in the classroom yesterday?A .study B.studied C.is studying怎么选
who [ ]in the classroom yesterday?A .study B.studied C.is studying
怎么选

who [ ]in the classroom yesterday?A .study B.studied C.is studying怎么选
选择B
因为后面是过去时yesterday,所以要用过去式
只有B中是过去时
所以选择studied

b

B 时间是“昨天”,所以用过去时

B
看时态,yesterday 有明显的提示。